package cn.tedu.csmall.business.controller;


import cn.tedu.csmall.business.service.IBusinessService;
import cn.tedu.csmall.commons.exception.CoolSharkServiceException;
import cn.tedu.csmall.commons.restful.JsonResult;
import cn.tedu.csmall.commons.restful.ResponseCode;
import com.alibaba.csp.sentinel.annotation.SentinelResource;
import com.alibaba.csp.sentinel.slots.block.BlockException;
import io.swagger.annotations.Api;
import io.swagger.annotations.ApiOperation;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

@RestController
@RequestMapping("/base/business")
@Api(tags = "业务触发模块")
public class BusinessController {

    @Autowired
    private IBusinessService service;

    @PostMapping("/buy")
    @ApiOperation("执行业务得触发")
    @SentinelResource(value = "购买",
            blockHandler = "blockError",fallback = "fallbackError")
    public JsonResult buy(){
        service.buy();
        // 随机发生异常,测试自定义降级方法效果
        if(Math.random()<0.5){
            throw new CoolSharkServiceException(
                    ResponseCode.INTERNAL_SERVER_ERROR,"发生随机异常");
        }
        return JsonResult.ok("购买完成");
    }

    public JsonResult blockError(BlockException e){
        return JsonResult.failed(ResponseCode.INTERNAL_SERVER_ERROR,"服务器繁忙，请撒后后再试");
    }

    public JsonResult fallbackError(Throwable e){
        e.printStackTrace();
        return JsonResult.failed(ResponseCode.INTERNAL_SERVER_ERROR,"服务器降级");
    }


}
